Temporary hit points in D&D 5e provide a flexible buffer that can change the pace of any encounter. Understanding how they interact with your class features, spells, and monsters helps you optimize survivability without breaking game balance.
Use this guide to clarify rules interactions, compare sources, and decide when to prioritize temp hp over long-term health.
| Source | Amount | Duration | Replacement |
|---|---|---|---|
| Bear Totem Spirit (Barbarian) | 2 + Constitution modifier | 1 minute | Lower of current sources |
| Protection Fighting Style | 2 + Constitution modifier | 1 minute | Lower of current sources |
| Glyph of Warding (Druid) | 5 + spell level | Concentration, 1 hour | Higher of current sources |
| Aid (Spell) | 5 + spell level | Concentration, 8 hours | Higher of current sources |
| Barkskin (Spell) | 10 | Concentration, 1 hour | Higher of current sources |
Temp HP Interaction with Features
Class Features that Grant Temp HP
Several class features generate temporary hit points on a predictable schedule. Barbarian at level 3 gains temp hp when you rage, while monks gain additional temp hp as you advance in the Monk tradition. Fighters using the Protection Fighting Style also access a reliable pool each time you take the Attack action. Tracking these sources helps you maintain a safe buffer without wasting actions.
Spells and Items that Stack
Spells such as Aid and Glyph of Warding can add sizable temp hp pools, and some magic items may grant additional temporary hit points. When multiple effects are active, the game usually uses the higher amount rather than stacking everything on top of each other. Always check whether a feature says it replaces or adds to existing temp hp to avoid misplaying resources in crucial moments.
Temp HP in Combat Situations
Absorbing Damage Before Hit Points
Temporary hit points act as a damage sponge that sits in front of your current hit points. When you take damage, the game removes temp hp first, which can save you from dropping to zero hit points more often. Because they are not part of your maximum hp, they cannot be restored by effects that target hit point maximum or through Hit Dice unless a specific feature says otherwise.
Timing and Loss Conditions
Many sources of temp hp last for a short duration or until you take a long rest, and some vanish if you drop to 0 hit points. Losing concentration can also end effects like Aid, which may cause the remaining temporary hit points to disappear instantly. Understanding these triggers lets you time your engagements to keep the buffer available when you need it most.
Comparisons and Design Philosophy
Temp HP vs Regeneration and Healing
Unlike healing, which increases your current hit points up to your maximum, temporary hit points only patch the gap between your current and maximum health. Regeneration effects usually rely on a different mechanic and may interact oddly with temp hp depending on the specific rules. Comparing these options helps you choose the right tool for survival in a given encounter.
Balance Considerations for Designers
Granting too many temporary hit points can reduce the tension of failing death saves or make certain enemy abilities feel less threatening. The designers generally limit powerful temp hp to higher-level features or concentration spells to preserve challenge. This framework keeps temp hp useful without overshadowing long-term health management.
Optimization and Build Planning
Action Economy and Resource Allocation
Using actions to trigger temp hp effects can compete with healing, buffs, or damage options. Pick moments when you expect heavy damage or when you cannot reliably rely on hit point recovery. Pairing features like the Protection Fighting Style with spells such as Aid can create layered defenses that are greater than the sum of their parts.
Synergies with Other Mechanics
Some feats, archetypes, and subclass features interact closely with temporary hit points by extending duration, increasing amount, or changing replacement rules. Building around these interactions can make you more durable in drawn-out campaigns while still fitting your character concept. Review feature wording carefully to confirm how they behave when you gain multiple sources of temp hp.
Mastering Temporary Hit Points in Practice
- Track duration and replacement rules for each source of temporary hit points.
- Use temp hp as a tactical buffer before entering risky encounters.
- Plan concentration spells carefully to avoid losing the temporary hit points at a critical moment.
- Coordinate with party members so they understand when you are most vulnerable.
- Review class features and spells regularly to optimize when temp hp improves survivability.
FAQ
Reader questions
Do temporary hit points stack with each other if I have multiple sources active?
Generally you keep the higher amount of temporary hit points rather than adding them together, though specific feature wording can override this rule.
Do temporary hit points carry over when I take a long rest?
No, temporary hit points are lost when you finish a long rest unless a feature explicitly says otherwise.
Can temporary hit points be used to stabilize a character at 0 hit points?
Yes, if you have temporary hit points, they are deducted before you make death saving throws, potentially preventing you from dropping to 0 hit points.
Do concentration spells that give temporary hit points break if I take damage?
Taking damage does not automatically break concentration, but losing concentration through other means will cause the temporary hit points to disappear.